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Recognition of Kyle Dorsey, WA State Dept. of Ecology

The Regulations Committee would like to recognize Kyle Dorsey, WA State Department of Ecology, for his leadership in creating one of the more successful biosolids programs in the country. Read the Regulations Spotlight here. 

WA State PFAS CAP Comments

The Washington State Department of Ecology (Ecology) has released the PFAS Draft Chemical Action Plan (CAP). This CAP includes a variety of chapters, one of which is on biosolids. To review the CAP and provide comment, visit the PFAS CAP website. Comments are due December 7, 2020.

U.S. EPA National Biosolids Meeting

The U.S. Environmental Protection Agency will be hosting a virtual National Biosolids Meeting to engage in a dialog on the future of the national biosolids program. The meeting will be hosted 12/8/20-12/10/20. Please stay tuned for a review on this meeting in the next Biosolids eBulletin.

Pima County Land Application Moratorium Lifted

From Greg Kester, California Assoc. of Sanitation Agencies

The moratorium on the land application of biosolids has been lifted in Pima County, Arizona. The return to land application is because of the comprehensive study done by the University of Arizona, Jacobs Engineering, and the National Science Foundation, and which I previously shared with you and is at the link below. For context, Pima County had successfully land applied Class B biosolids since 1984 but a concern was brought to the Board of Supervisors in late 2019 for the potential contamination of groundwater with PFAS from the biosolids. Pima County began landfilling their biosolids on January 1, 2020 at least twice the monetary expense and to the detriment of soil health. They commissioned the subject study which began in March 2020 on sites that had received the biosolids and concluded there is minimal transport through the topsoil and negligible concern for groundwater. Though Pima County is an arid climate and depth to groundwater is more than 150 feet, the sites received between 30 and 54 inches of irrigation water which equates to rainfall in heavy precipitation areas of the US, and even if groundwater were shallower, minimal transport was found. Many thanks to all involved in this study and especially project lead, Dr. Ian Pepper (U of AZ), and to Houssam el Jerdi with the Pima County RWRD.

PFAS in Biosolids: A Southern Arizona Case Study

PFAS Cost Impacts Study

The North East Biosolids & Residuals Association, in partnership with NACWA, WEF, and CDM Smith, released a report in October 2020 outlining the cost impacts of PFAS on wastewater utilities and their biosolids programs. To learn more and access a link to the report, visit NEBRA's story here.